I believe the SCDOR is capable of receiving Amended Entity returns (1065, 1120S, 1120, etc) for years 2020 and after.  

Right now, it appears ProConnect will not allow the Amended returns for 2020 & 2021 (I haven't amended anything for 2022 yet) to be e-filed with the Federal return.  We have to print and mail to SC.  

Are there plans to enable this capability in the future?